Adaptor plate



FIG. 1 is a perspective view of the adaptor plate showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines in the drawings illustrate the portions of the suction cover that form no part of the claim. 

CLAIM The ornamental design for an adaptor plate, as shown and described. 